CVE-2026-50090 Aqara OAuth redirect_uri validation bypass

Critical 9.3 Published Updated

Attackers can bypass OAuth redirect_uri validation to steal user credentials or tokens via phishing links.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-50090?

CVE-2026-50090 is a critical vulnerability in Aqara Cloud OAuth Authorization Endpoint, published on 12 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The Aqara Cloud OAuth Authorization Endpoint (open-cn.aqara.com/oauth/authorize) is vulnerable to a redirect bypass due to lax controls on domain matching, which is an instance of "CWE-1289: Improper Validation of Unsafe Equivalence in Input" and has an estimated CVSS of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N (9.3 Critical).

Weakness: CWE-1289

Which versions are affected by CVE-2026-50090?

It affects 1 product.

Products include Aqara Cloud Oauth Authorization Endpoint.

How do I fix CVE-2026-50090?

No fix has been published for CVE-2026-50090 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-50090 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-50090 exists.

Sources

Also known as GHSA-r6gg-58h5-pw3w.

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